Ultramarine ash


Also found in: Encyclopedia.
Related to Ultramarine ash: Ultramarines
(Paint.) a pigment which is the residuum of lapis lazuli after the ultramarine has been extracted. It was used by the old masters as a middle or neutral tint for flesh, skies, and draperies, being of a purer and tenderer gray than that produced by the mixture of more positive colors.
- Fairholt.

See also: Ultramarine